Social Security and Taxes: The Truth About the 85% Myth (And How to Avoid the Tax Torpedo)

If there’s one topic that causes more confusion than anything else, it’s how Social Security is taxed. You’ve probably heard: “They tax 85% of your Social Security benefits.”

That sounds scary, like you only keep 15%. But that’s NOT what it means. However, misunderstanding this rule leads retirees straight into the Tax Torpedo.

What the 85% Rule Actually Means

When the IRS says “up to 85% of your Social Security benefits may be taxable,” they mean that up to 85% of your benefit amount is added to your taxable income. It is then taxed at your marginal rate (likely 12% or 22%). You are NOT paying 85% tax.

When Does Social Security Become Taxable?

It depends on your Provisional Income (AGI + Non-taxable interest + 50% of Social Security). If you are married and your provisional income exceeds $44,000, up to 85% of your benefit becomes taxable.

What Is the “Tax Torpedo”?

The Tax Torpedo is a sudden spike in your marginal tax rate caused by IRA withdrawals. When you take $1 from your IRA, it increases your income, which makes more of your Social Security taxable. This can create an effective tax rate of 40% or more on that withdrawal.

Three Ways to Avoid the Tax Torpedo

• 1. Delay Social Security, Withdraw IRA Funds First: This reduces your RMDs later in life.
• 2. Use Strategic Roth Conversions: Roth withdrawals do not count toward provisional income.
• 3. Coordinate Filing Dates: One spouse’s filing timing affects the household tax bracket.